The CePtSi0.9Ge0.1
unaligned NMR spectrum shows a typical powder broadening pattern.
The highest peak which has
more area under the peak is the resonance peak in the ab plane. It is because the probability of the
nuclear polarization in the ab plane is twice as in the c axis. It also can be verified from the
sprctra in the aligned sample, which show the ab plane has more Knight shift than
the c axis. Besides, it also
indicates the ab plane has a higher magnetic susceptibility than c axis.
p.s. The phase near 29.6 KOe was found different
from the one near 30 KOe. That is why the quadrature phase part is not flat.